Size matters,
Modern stereo can reproduce small ensembles, single instruments, small groups with astonishing clarity, and presence.
Imagine fitting them in your room love, live, thats how I see it.
Now Imagine fitting 3 rock stars with their guitars, a drum set Live in your room, no amplification (what kind of havoc it would cause with acoustics) .... they will be squished against each other on one corner and the drums on the other corner (of your 15 x 20 ft room) ... It gets pretty loud pretty quick.
Now lets get the LA phil in your room- (from google)
A modern orchestra has about 100 instruments
The string section includes 34 violins, 12 violas, ten cellos, eight double basses, and two harps, for a total of 66 instruments.
The woodwind section includes three flutes, three clarinets, three oboes, three bassoons, one double bassoon, one piccolo, one English horn, and one bass clarinet, for a total of 16 instruments.
The brass section includes four trumpets, six French horns, three trombones, and one tuba, for a total of 14 instruments.
The percussion section contains a variety of instruments, including four kettledrums, and such instruments as the chimes, xylophone, triangle, and cymbals.
Physics dictates to reproduce a concert exactly as it was recorded, you need the room of appropriate size, transducers which can reproduce the energy (this is what you would call dynamics) of over 100 players. Otherwise its just a window.
Kind Regards